h-listing: Difference between revisions

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<entry-title>h-listing draft</entry-title>
<entry-title>h-Listing draft</entry-title>
{{DraftSpecification}}
{{DraftSpecification}}


<dfn style="font-style:normal;font-weight:bold">h-listing</dfn> is a simple, open format for publishing product data on the web. h-listing is one of several open [[microformats|microformat]] draft standards suitable for embedding data in HTML/HTML5.
<dfn style="font-style:normal;font-weight:bold">h-Listing</dfn> is a simple, open format for publishing product data on the web. h-Listing is one of several open [[microformats|microformat]] draft standards suitable for embedding data in HTML/HTML5.


h-listing is the [[microformats2]] update to [[hListing]].
h-Listing is the [[microformats2]] update to [[hListing]].


{{cc0-owfa-license}}
{{cc0-owfa-license}}

Revision as of 16:05, 18 November 2014

<entry-title>h-Listing draft</entry-title> This document represents a draft microformat specification. Although drafts are somewhat mature in the development process, the stability of this document cannot be guaranteed, and implementers should be prepared to keep abreast of future developments and changes. Watch this wiki page, or follow discussions on the #microformats IRC channel to stay up-to-date.

h-Listing is a simple, open format for publishing product data on the web. h-Listing is one of several open microformat draft standards suitable for embedding data in HTML/HTML5.

h-Listing is the microformats2 update to hListing.

Per CC0, to the extent possible under law, the editors have waived all copyright and related or neighboring rights to this work. In addition, as of 2024-03-28, the editors have made this specification available under the Open Web Foundation Agreement Version 1.0.


Draft Proposal

Editors


Authors and Contributors

Introduction

Individuals and professionals are increasingly publishing their offerings online: whether as items for sale or rent (cars, homes, apartments), services for hire (music lessons, dog walker, plumber), openings (jobs, volunteers, extra spot in a book club) or personals (people looking for dates, companions, roommates). The goal of publishing (and promoting) these listings online is to seek out interested parties, often within a limited time period.

While descriptions of products and services are common on the Web, particularly on e-commerce sites, we are proposing an hListing microformat for sharing, searching, and syndicating the information that helps match up buyers and sellers. This proposal follows the common practices of trading sites such as Craigslist, eBay and newspaper classifieds.

If hReview is about an item and what you think of it, h-Listing is about an item and what you want to do with it.

Inspiration and Acknowledgments

Thanks to everyone who participated in the initial burst of hListing activity in August 2005, particularly Emiliano Martínez Luque and Trevor O'Reilly, for naming the effort and organizing the listing-{brainstorming, formats, examples} pages on the wiki. We would like to thank Tantek for an initial debate about whether to extend hReview or pursue an independent-though-similar hListing and later on, h-Listing for our proposal.


Scope

Format

In General

The hListing format is based on a set of fields common to numerous listing sites and formats in use today on the web. Where possible field names have been chosen based on those defined by the related hReview, hCard, hCalendar standards.


Properties

The class h-listing is a root class name that indicates the presence of an h-Listing.

  • h-Listing


Summary of Changes

Property Details

h-Listing property details:


Examples

Challenge Problems

See h-Listing Challenge Problems for some hypothetical examples that illustrate corners of the specification.


Examples in the Wild

This section is informative.

The following sites have implemented h-listing, and thus are a great place to start for anyone looking for examples "in the wild" to try parsing, indexing, organizing etc. If your site is marked up with hListing, feel free to add it to the top of this list. Include both a URL to the top level site, and at least one URL to a specific hListing item on that site so that the hListing markup can be verified.

Once the list grows too big, we'll make a separate wiki page like h-listing-examples-in-wild.


implementations

Please add links to sites that consume h-Listings, and tools which generate h-Listings.

  • ...


Changes

Background

Discussions


Internationalization

Internationalization: Though there are many English-language tokens, they are only used as class-names; user-visible listing information can be completely localized. N.b. that (X)HTML lang attribute rules still apply as usual, for multilingual aggregators of h-Listings.


See also